Wrench.



No. 637,268. Patented my. 2|, l899. n. LINEBAUGH.

' WRENCH.

(Application filed I. 37, 1899.)

'(No Model.)

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UNITED STATES A PATENT OFFICE.

DAVID LINEBAUGH, OF AURORA, MISSOURI.

WRENCH.

SPECIFICATION formingpart of Letters Patent No. 637,268, dated November21, 1899.

Application filed March 2'7, 1899. Serial No. 710,658. (No model.)

To aZZ whom it may concern:

Be it known that 1, DAVID LINEBAUGH, a citizen of the United States,residing at Aurora, in the county of Lawrence and State of Missouri,have invented certain new and usefullmprovements in Wrenches; andIdohereby declare the following to 'be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to an improvement in wrenches; and the objectthereof is to provide a nut-wrench of the usual or any suitableconstruction with auxiliary or supplemental gripping-faces, which shallbe so formed as to accommodate themselves to various-sized nuts withoutthe necessity for careful adj ustment of the jaws.

A further object of the invention is to provide gripping-faces which, inaddition to their ready adjustment to nuts without the neces: sity ofaccurate or frequent sliding of the jaw,

may be used to perfect or recut-threads on old and battered bolts.

Therefore my invention consists in a tapering or conical stepped socketformed in the jaws of the wrench, preferably on one side thereof andpartly in. both jaws, so that the separation of the jaws will divide thesocket, adapting it to operate upon a nut or bolt-head and also enlargeits gripping compass.

The invention further consists in certain novel features in theconstruction and arrangement of the socket, all as hereinafter setforth,and pointed out in the claims.

'In the accompanying drawings, in which my invention is illustrated,Figure I is a side view of a wrench of the usual construction having myinvention applied thereto. Fig. 11 is a vertical sectional view taken onthe line a: 00 of Fig. I. Fig. III is a side View of a wrench, showing amodified form of the invention, in which the nut-socket is formed in therear ends of the jaws; and Fig. IV is a vertical sectional view showinganother modification of the invention, the nut-socket being shown inthis View as formedin a raised portion or projection on one side ofthejaws.

Referring to the drawings, the wrench shown comprises a fixed jaw A,stock B, hanabove will resist the turning of the nut or bolt. By meansof this series of steps in a tapering or conical socket the jawsaccommodate various sizes of nuts or bolts without often the need ofadjusting the jaws, or at the most but slight adjustment thereof. It isalso the function of the stepped socket to form a handy device by whichbadly worn or battered bolts may be perfected in its screwthreadedportion by theuse of the edges of the series of steps as cutters.

As before stated, this invention of the stepped tapering socket isdesigned to supplement the ordinary working of the jaws, which when theyfail to take hold at their forward end, whichis of the usual form,resort can be had to the socket. For this reason the socket ispreferably located in the side of the jaws and near the rear endsthereof, as in this location the rear ends may still be used for;hammering; but if found desirable the socket may be formed in thehammering ends, as shown in Fig. III.

In Fig. IV the jaws are shown with a raised portion formed oncorresponding sides, in which the socket is made and by which raising ofthe socket it is the more readily applied to nuts and bolts in placesdifficult of access to the fiat side of the jaw.

The form of the socket is elongated by the separation of the jaws andpractically becomes an ellipse, so that it becomes impossible for thenut (shownin dotted lines) to turn without becoming more firmlywedgedin' the socket.

Having thus fully described my invention, I claim and desire to seizureby Letters Patcut-- 1. A wrench having each jaw provided with a stepped,tapering recess of semicircular or gether to form a conical steppedsocket, as

curved form, adapted to register when said and for the purpose setforth. :0 jaws are brought together, and form a taper- In testimonywhereof I affix my signature ing stepped socket, as and for the purposeset in presence of two witnesses. 5 forth. DAVID LINEBAUGI-I.

2. A Wrench having formed in the corre- Witnesses: spondingsidesofthejawsregistering,stepped, DAISY CAMPBELL,

tapering recesses, adapted when brought to- C. G. THOMPSON;

